大功率汽轮机末级动叶根部叶栅的最优化设计

Optimal Design of the Last Stage Rotor Blade Root Cascade for Large-output Steam Turbines

本文提出了大功率汽轮机末级动叶根部叶栅的最优化设计的方法,并给出设计实例。最优设计所得的叶栅损失系数比原有叶栅的损失系数有明显下降。

This paper presents the optimal design method of the last stage rotor blade root cascade for large-output steam turbines with actual design examples being given.The cascade loss factor of the optimally designed cascades is significantly lower than that of the original cascades.